Table 4.

Sensitivity and specificity for the detection ofN. gonorrhoeae by COBAS AMPLICOR calculated on a sample‚ÄČbasis

Group (no. of specimens)Specimen%
PrevalenceSensitivitySpecificity
All women (2,192)Endocervical6.396.499.5
Urine6.269.699.8
Asymptomatic men (714)Urethral2.990.599.0
Urine2.078.699.9
Symptomatic men (1,267)Urethral29.099.598.8
Urine28.796.299.9